https://github.com/seangenabe/mongodb-transaction-daemon

[DEPRECATED: MongoDB supports transactions now.] MongoDB transaction helper
https://github.com/seangenabe/mongodb-transaction-daemon

Last synced: 7 months ago
JSON representation

[DEPRECATED: MongoDB supports transactions now.] MongoDB transaction helper

• Host: GitHub
• URL: https://github.com/seangenabe/mongodb-transaction-daemon
• Owner: seangenabe
• License: mit
• Created: 2018-01-31T16:09:51.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-04-10T09:58:14.000Z (over 6 years ago)
• Last Synced: 2024-04-14T05:28:06.938Z (over 1 year ago)
• Language: TypeScript
• Homepage:
• Size: 7.81 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license.md

Awesome Lists containing this project

README

          
# mongodb-transaction-daemon

MongoDB transaction helper.

## Usage

```typescript

import { TransactionDaemon } from 'mongodb-transaction-daemon'

const daemon = new TransactionDaemon()

const users = db.collection('users')

// Register a method.

daemon.register('awesomeInTwoSteps', {

  lockOnCollections: {

    users: {

      read: true,

      write: true

    }

  },

  *plan(context, _id, first, second) {

    // The generator function is merely a convenience.

    // We need to be able to resume execution at any point.

    // Do not put MongoDB operations in the planning phase.

    yield async c => {

      await users.updateOne({ _id }, { a: first })

    }

    yield async c => {

      await users.updateOne({ _id }, { a: second })

      await c.setResult('ok')

    }

  }

})

// Invoke.

await daemon.invoke('awesomeInTwoSteps', 1, 2) // ok

```

See the [API](./api.md).